Abstract
In this paper, we obtain the analytic solution of free vibration frequency and mode shapes of rectangle, circle and elliptic membranes. The approximate solution of membrane with arbitrary boundary is also obtained. All of these membranes are acted on by unequal tension in two directions.
For the rectangle membrane, in this paper we transform its vibration equation into one of usual membranes by transforming the coordinate, thus it is easy to get the solution. For the way we deal with the rectangle membrane. Next we transform the vibration equation into the Mathieu equation, then we get a formula of frequency of that membrane with some Mathieu function's property. In the solution the elliptic membrane is similar to that of the circle membrane.
Finally, some examples are given.
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Communicated by Chien Wei-zang.
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Guo-zhen, Q. Solution for free vibration problem of membrane with unequal tension in two directions. Appl Math Mech 3, 885–892 (1982). https://doi.org/10.1007/BF01895343
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DOI: https://doi.org/10.1007/BF01895343